Righteous swimming LEGO sea turtle totally rocks, so give him some fin

Grant Davis is a true LEGO wizard. His talent for creating whimsical and nearly stud-free models that innovate with colors and complex angles would be enough to make him one of our favorite builders, but it’s Grant’s mechanical artistry that makes him a legend. Like his LEGO Ideas pop-up book collaborator Jason Alleman, Grant often builds kinetic sculptures – LEGO models that integrate power functions for fluid movement. His latest creation, the Swimming Sea Turtle Machine, is a slice of Finding Nemo brought to life in bricks. The adorable seat turtle with its surfboard fins and cartoon eyes delights as it swims under the waves, but to truly appreciate the model, you need to look deeper.

On his Brick Innovations youtube channel, Grant walks us through the months-long development process. The video reveals Grant’s iterative design process and serves as an excellent primer on the challenges of kinetic builds. You’ll learn ratios of how gear rotation translates into vertical motion and see the pitfalls when rigid bricks and motors are out of sync. You’ll also see how the turtle evolved from a more realistic sand-green model to the cartoonier lime green version here, and you can even see them swim together! Even if you’re not ready to invent a kinetic model of your own, Grant’s behind-the-scene look is sure to give you a greater appreciateion for what your LEGO bricks are capable of.

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